(a.) A very soluble crystalline body which is the chief constituent of the urine in mammals and some other animals. It is also present in small quantity in blood, serous fluids, lymph, the liver, etc.
Example Sentences:
(1) These data suggest that the hybrid is formed by the same mechanism in the absence and presence of the urea step.
(2) The fourth cluster included the type strains of Actinobacillus lignieresii, A. equuli, A. pleuropneumoniae, A. suis, A. ureae, H. parahaemolyticus, H. parainfluenzae, H. paraphrohaemolyticus, H. ducreyi, and P. haemolytica.
(3) Thymus and spleen cells from such hypogammaglobulinaemic chickens were extracted with non-ionic detergents, acid urea, or combinations of urea and detergent, and the extracts were analysed for Ig by the inhibition assay.
(4) Triglyceride (Trigly) in female dogs, glutamic-pyruvic transaminase (GPT) and urea nitrogen (Urea-N) in male dogs tended to increase.
(5) The two main subunits present in rabbit skeletal tropomyosin, which have been named the alpha- and beta-chains, were separated by chromatography on CM-cellulose in urea at pH4.0.
(6) The temperature-activated 4 to 5 S EBP transformation is found to be highly reproducible without loss of [3H]estradiol-binding activity in a buffer containing an excess of [3H]estradiol, 40 mM Tris, 1 mM dithiothreitol, and 1 M urea at pH 7.4.
(7) The blockage of the tubular system by the calcium oxalate deposits leads to a temporary reversible increase in serum urea and serum creatinine.
(8) Urea was determined by means of diacetyl monoxim in the blood cells of 80 cockerels of the initial breed White Leghorn, commercial hybrid Primant.
(9) Urea decreased and valine increased in the TD medulla-pons.
(10) The complex was found to be unstable toward low values of pH and ionic strength, concentrations of urea exceeding 1 M, modifications of the cysteine residues, and fragmention in which the C terminal portions of either H3 or H4 are removed.
(11) The decrease in the amount of excreted urea by 85% was also accompanied by a reduced glomerular filtration rate (GFR).
(12) The modified osmium-urea method gave better results and was easier to perform than the collagenase method.
(13) Conversely, when fed NIH-07, both mouse genotypes had a 20-22% higher (p less than 0.003) serum urea nitogren and 2-3.5% higher erythrocyte count (p less than 0.001) and hemoglobin concentration (p less than 0.04) than when fed AIN-76A.
(14) (7) The first-order radical transformation rates are independent of the (initial) concentration of N3 or peptide and unaffected by urea (as a modifier of hydrogen bond structures).
(15) Treatment of the enzyme with acid and urea resulted in dissociation of the enzyme followed by loss of catalytic activity.
(16) 6) The subunits alpha and beta of bovine follitropin were obtained by incubation in acidic urea, the chains being then separated by anion exchange chromatography.
(17) There were no major differences in blood composition, apart from increases in blood urea N, as a result of N fertilization.
(18) In contrast to the facilitated water and urea transport systems in the red blood cell, these results suggest that the mechanism for water and urea transport in the platelet is primarily by diffusion through membrane phospholipid.
(19) A significant treatment X time interaction was found for plasma urea.
(20) The disc-gel patterns of the 8 m urea-soluble proteins showed that C. perfringens caused extensive proteolysis in pig muscle and a lesser extent of proteolysis in rabbit muscle.
Ureal
Definition:
(a.) Of or pertaining to urea; containing, or consisting of, urea; as, ureal deposits.
Example Sentences:
(1) The duration of nephropathy, the onset of arterial hypertension (AH), a family history of AH, uric syndrome, intravenous urographic evidence, glomerular filtration rate (GFR) determined from endogenous creatinine, the cellular membranes studied in erythrocytes by ureal hemolysis, and blood levels of thiol and disulfide groups by back amperometric titration, red blood cell activity of glutathione reductase and glucoso-6-phosphate dehydrogenase were evaluated in 108 patients with essential hypertension (EH), mesangial proliferative glomerulonephritis who had elevated and normal blood pressures and 18 healthy subjects.
(2) The ability of mathematical modellings for statements is shown at the instance of the ureal plasma kinetics in apparative peritoneal detoxication methods and in connection with investigations about the implantable kidney as well as supplemented by explanations concerning the dynamic compartment modelling of the potassium balance.
(3) Anti-U serum (antiserum to ureal homogenate) exhibited specific fluorescence in the area of Bruch's membrane.